Bell



y 3, 1938' v I c. M. MILLER 2,116,320

BELL

Filed Dec. 29, 1934 Patented May 3, 1938 PATENT OFFICE BELL Carl M. Miller, Chicago, Ill., assignoito Kellogg Switchboard and Supply Company, Chicago, Ill, a. corporation of Illinois Application December 29, 1934, Serial No. 759,727

2 Claims.

This invention relates to an improvement in bells, whereby a bell of a given or desired tone may be produced which will occupy less space than previous bells.

In the conventional type of bell the shape is such as would be generated by a smooth curve.

the type of bell herein disclosed the bell is folded back on itself. Thus the surface area and the characteristic tonal qualities of the larger bell are retained but the space required by the bell much less. The amount of space saved is dependent on the number of folds; in a thricefolded bell the lateral space occupied will be only about one-third of the space occupied by a bell the conventional type having substantially the me tone. Due to the relation of the various walls and spaces ofthe bell to each other it is possible to create. and control the desired qualities of the bell.

Thus a bell having desired qualities such a pleasing tone, sustained vibration, required pitch and desired overtones may be readily designed.

Bells of this character are particularly desirable in connection with telephone boxes, gongs and other devices of like character where it is desired to provide a bell having a deep tone and gher overtones which may be located within the available space.

From the above it is obvious that the principal Referring now to the drawing in which like reference characters indicate the same parts in the several views,

Fig. l is a transverse section through the bell;

and

Fig. 2 is a view looking at the closed side therelteferring now in particular to Fig. 1 the bell comprises the cup-shaped central portion comprising the top l and the substantially parallel side walls II. The side wall H is folded back upon itself at 12 to provide a wall l3 substantially parallel with the wall II. The wall I3 is in turn 5 folded back on itself at i 4 to provide a wall 15 substantially parallel to the wall l3. The folding and refolding of the wall portion may be continued to provide any number of the U-shaped portions. The bell will obviously be supported by means of a pin or rivet passing through the opening H5 in the portion Ill.

While in the above description and in the drawing the parts ll, l3 and I5 have been shown as substantially parallel it is obvious that the parts HI3 and l3l5 may be somewhat divergent without departing from the spirit of the present invention. Also the particular contour of the inner cavity formed by the parts I!) and l I may be varied at will.

Having described my invention what I claim is new and desire to secure by United States Letters Patent is:

1. A bell of thergong type comprising a cupshaped body portion having a surrounding wall portion folded and refolded back upon itself through the major portion of the depth of said cup-shaped portion, said cup-shaped portion having a width appreciably greater than the width of each of the folds of the wall portion providing for relatively deep tones in a compact bell.

2. A bell of the gong type comprising a cupshaped body portion having integral top and annular peripheral wall, said wall having a portion folded back upon itself and refolded thereupon externally of the wall, said folded and refolded portions extending throughout the major portion of the depth of the Wall, the top having a width appreciably greater than the width of each of the folds of the wall portion providing for relatively deep tones in a compact bell.

CARL M. MILLER. 

